Filing search / Registration and prospectus / P2021 Rig Co. / Page 3

S-1

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16 Jun 16

IPO registration

12:00am

15-15D

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30 Mar 16

Suspension of duty to report

12:00am

15-15D

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30 Mar 16

Suspension of duty to report

12:00am

424B3

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26 Jul 13

Prospectus supplement

12:00am

424B3

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3 Apr 13

Prospectus supplement

12:00am

424B3

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1 Aug 12

Prospectus supplement

12:00am

S-4/A

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30 Jul 12

Registration of securities issued in business combination transactions (amended)

12:00am

S-4

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5 Jun 12

Registration of securities issued in business combination transactions

12:00am

POS AM

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25 Oct 11

Prospectus update (post-effective amendment)

12:00am

424B3

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19 Oct 11

Prospectus supplement

12:00am

S-3

786v043

3 Aug 11

Shelf registration

12:00am